Army Operations Research History
2013-6-13 · o the sounds of a South Vietnamese Army artillery salute and a Sousa march, the last United States Army infantry battalion in Vietnamthe 3d Battalion, 21st Infantrystood down on 11 August 1972.1 That same month, Battery B, 3d Battalion, 82d Artillery fired the last U.S. artillery round in Vietnam.2 Five and a half months later, on 23 January ...
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